Try to recreate task when it returns nil

denivip · Apr 24, 2014 · 4872bf2 · 4872bf2
1 parent c4d6d9a
commit 4872bf2
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/AFNetworking/AFURLSessionManager.m b/AFNetworking/AFURLSessionManager.m
@@ -504,6 +504,20 @@ - (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request
 {
     NSURLSessionUploadTask *uploadTask = [self.session uploadTaskWithRequest:request fromFile:fileURL];
 
+    // This may be a bug in iOS. Devforums say that subsequent calls may succeed.
+    // Let's try to recreate the task.
+
+    NSInteger try = 3;
+    while (! uploadTask && try > 0) {
+        uploadTask = [self.session uploadTaskWithRequest:request fromFile:fileURL];
+        try--;
+    }
+
+    if (! uploadTask) {
+        DVAssert(uploadTask, @"%@ %@ %@ %@ %i", self.session, request, [request URL], fileURL, [[NSFileManager defaultManager] fileExistsAtPath:[fileURL path]]);
+        return nil;
+    }
+
     [self addDelegateForUploadTask:uploadTask progress:progress completionHandler:completionHandler];
 
     return uploadTask;